Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Usman"'
The generation of controlled and arbitrarily tunable terahertz radiation, essential for many applications, has proven challenging due to the complexity of experimental setups and fabrication techniques. We introduce a new strategy involving control o
Externí odkaz:
http://arxiv.org/abs/2404.16597
Autor:
Javid, Usman A., Lopez-Rios, Raymond, Ling, Jingwei, Graf, Austin, Staffa, Jeremy, Lin, Qiang
An efficient simulator for quantum systems is one of the original goals for the efforts to develop a quantum computer [1]. In recent years, synthetic dimension in photonics [2] have emerged as a potentially powerful approach for simulation that is fr
Externí odkaz:
http://arxiv.org/abs/2211.01489
Autor:
He, Yang, Lopez-Rios, Raymond, Javid, Usman A., Ling, Jingwei, Li, Mingxiao, Xue, Shixin, Vahala, Kerry, Lin, Qiang
Microwave signal generation with fast frequency tuning underlies many applications including sensing, imaging, ranging, time keeping, wireless communication, and high-speed electronics. Soliton microcombs are a promising new approach for photonic-bas
Externí odkaz:
http://arxiv.org/abs/2208.08046
Autor:
Li, Mingxiao, Chang, Lin, Wu, Lue, Staffa, Jeremy, Ling, Jingwei, Javid, Usman A., He, Yang, Lopez-rios, Raymond, Xue, Shixin, Morin, Theodore J., Shen, Boqiang, Wang, Heming, Zeng, Siwei, Zhu, Lin, Vahala, Kerry J., Bowers, John E., Lin, Qiang
The development of integrated semiconductor lasers has miniaturized traditional bulky laser systems, enabling a wide range of photonic applications. A progression from pure III-V based lasers to III-V/external cavity structures has harnessed low-loss
Externí odkaz:
http://arxiv.org/abs/2204.12078
Autor:
West, Maxwell T., Usman, Muhammad
Publikováno v:
Nanoscale 2021
Theoretical understanding of scanning tunnelling microscope (STM) measurements involve electronic structure details of the STM tip and the sample being measured. Conventionally, the focus has been on the accuracy of the electronic state simulations o
Externí odkaz:
http://arxiv.org/abs/2107.11980
Nanophotonic entangled-photon sources are a critical building block of chip-scale quantum photonic architecture and have seen significant development over the past two decades. These sources generate photon pairs that typically span over a narrow fre
Externí odkaz:
http://arxiv.org/abs/2101.04877
Autor:
Usman, Muhammad
Publikováno v:
Nanoscale 2020
Semiconductor core$-$shell nanowires based on the GaAs substrate are building blocks of many photonic, photovoltaic and electronic devices, thanks to the associated direct band-gap and the highly tunable optoelectronic properties. The selection of a
Externí odkaz:
http://arxiv.org/abs/2006.12108
Modern advanced photonic integrated circuits require dense integration of high-speed electro-optic functional elements on a compact chip that consumes only moderate power. Energy efficiency, operation speed, and device dimension are thus crucial metr
Externí odkaz:
http://arxiv.org/abs/2003.03259
Autor:
Usman, Muhammad
Publikováno v:
Nanoscale 2019
Nanowires are versatile nanostructures, which allow an exquisite control over bandgap energies and charge carrier dynamics making them highly attractive as building blocks for a broad range of photonic devices. For optimal solutions concerning device
Externí odkaz:
http://arxiv.org/abs/1909.08312
We report on the study of optical properties of mist CVD grown alpha Gallium oxide with the observation of excitonic absorption in spectral responsivity measurements. 163 nm of Gallium oxide was grown on sapphire using Gallium acetylacetonate as the
Externí odkaz:
http://arxiv.org/abs/1907.13072